Posted by **Anonymous** on Thursday, May 9, 2013 at 12:20pm.

A study in a particular state found that only 5% of the voters have Doctoral degrees. In a random sample of 200 voters, let x be the number who have doctoral degrees.

6) Find the mean of x.

7) Find the standard deviation of x.

8) Find the z-score for x > 10.5

9) What is the probability that more than 10.5 voters in a sample of 200 voters will hold a Doctoral degree?

10) What is the probability that at least 10.5 voters in a sample of 200 voters will hold a Doctoral degree?

## Answer this Question

## Related Questions

- `Statistics - A public relations firm found only 9% of voters in a certain state...
- Statistics - In a survey, 55% of the voters support a particular referendum. If ...
- statistics - A population of 200 voters contains 52 Republicans, 128 Democrats, ...
- Basic Statistics - A population of 200 voters contains 52 Republicans, 128 ...
- statistics - In a state,52%of the voters supports party-R, and 48% supports ...
- Statistics - Any ideas please? Simple random sample of voters will be taken in a...
- Statistics- Standard Error - A population of 200 voters contains 52 Republicans...
- Math/statistics - Thirty five percent of adult americans are regular voters. A ...
- Basic Statistics - A population of 300 voters contains 147 Republicans, 135 ...
- Statisics - 35%of adult Americans are regular voters. A random sample of 250 ...